Merge pull request #44 from darkixion/master

Fix numerous typos as well as formatting and grammatical issues.
Fix issue #45, pgbadger will now only reports execute statement of the extended protocol (parse/bind/execute). Thanks to pierrestroh for the report.
Fix issue #46, to add support to hostname or ip address in the client detection. Thanks to stuntmunkee for the report.
Improve SQL code highlighting and keywords detection using the same parser as in site http://sqlformat.darold.net/. Thanks to Alex Gaynor for the feature request.
Fix some typos and grammatical issues.
Fix the progress bar. It was trying to use gunzip to get real file size
for all formats (by default). Unbreak the bz2 format (that does not
report real size) and add support for zip format.
Merge pull request #49 from eulerto/master

cosmetic patches
Remove port from the session regex pattern to match all lines.
Add 'binary' format as input/output format

The binary output format allows to save log statistics in a non human
readable file instead of an HTML or text file. These binary files might
then be used as regular input files, combined or not, to produce a html
or txt report.
Merge pull request #50 from ioguix/storable

Add 'binary' format as input/output format
Fix populating of %_error_info.
Fix a performance issue on prettifying SQL queries that makes pgBagder several time slower that usual to generate the HTML output. Thanks to Vincent Laborie for the report.
Remove duration from log format auto-detection. Thanks to Guillaume Lelarge for the report.
Fix memory leak with option -b (--begin) and in incremental log parsing mode.
Add report of user,remote client and application name to all request info.
Add report of requests per database.
Add link menu to the request per database and limit the display of this information when there is more than one database.
Add report of number of queries by application if %a is specified in the log_line_prefix.
Queries without application name are stored under others application name.
Update documentation.